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Finding the Fourth Proportional to 418,589, 627,883.53 and 123,101

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Solution

The fourth proportional to 418,589, 627,883.53 and 123,101 is: 184,651.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,589 : 627,883.53 = 123,101 : x
  2. Step 2: Convert to fraction form
    418,589/627,883.53 = 123,101/x
  3. Step 3: Cross multiply
    418,589x = 627,883.53 × 123,101
  4. Step 4: Simplify right side
    418,589x = 77,293,090,426.53
  5. Step 5: Solve for x
    x = 77,293,090,426.53/418,589
  6. Step 6: Final answer
    x = 184,651.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.